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I have recently received HDR-60 Video Camera Development Kit. I was excited to do some verilog coding for HDMI interface. Design software I have downloaded was iCEcube2 2017.08 (Licence will provided from Lattice-semi based on the shared MAC address). But unfortunately iCEcube2 2017.08 won't support LatticeECP3-70 (BGA484) which is present in the HDR-60 dev-kit.

Can anyone suggest a design software to program HDR-60? I understand that there is another tool Lattice Diamond, that also I have tired and it also showed as tool wont support LatticeECP3-70. Kindly advice.

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Lattice Diamond is listed as showing ECP3 support, but only with a paid license; normally a development kit should at least provide a node-locked / eval license for your purposes. I would try contacting Lattice as it is their kit and they should be supporting it.

Extra content: Some Lattice FPGAs have only the fact that they are currently sold and marketed by Lattice in-common, and differ significantly under the hood. For example, Lattice acquired SiliconBlue in 2011 and the iCE-family came along with them. Lattice Radiant is the new software development package for that family and has nothing to do with Diamond and the other Lattice devices.

There is also significant work being done by the open-source community in creating completely free, high-performance synthesis and implementation tools for Lattice devices (yosys). If I recall correctly, those are currently focused on iCE40 with ECP5 work in progress at the moment

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